Re: [mailop] Using cloud hosts for MX (not SMTP)

2023-01-18 Thread Ángel via mailop
On 2023-01-17 at 20:34 -0600, Alberto Abrao wrote:
> Still, it generates an error message to the sender. I was looking to 
> "split" my server, having the MX (inbound) at a cloud provider (OVH), 
> and keeping outbound SMTP on the IP provided by my ISP.
> 
> I see many posts saying that e-mails from cloud providers such as OVH 
> are blocked outright by many. That had me wondering if it's a good idea 
> to proceed with this plan, as I may not be able to receive messages from 
> senders under these operators.
> 
> That'd assume the block is inbound and outbound, instead of 
> inbound-only. Is that the case?
> 
> One more thing, would a set up like this interfere with my "score", so 
> to speak?

Yes, you can do that. No, I don't expect any problem. (But you could
use someone other than OVH if you prefer)
Still, if you have a server locally continuously up, and you have
already done the change, I don't see why you want to modify the
existing setup. Are you expecting more moves?

You could as well set two MX, one at OVH and another at the "real"
server, up to you which one with higher priority.


Regards


___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop


Re: [mailop] Using cloud hosts for MX (not SMTP)

2023-01-18 Thread Al Iverson via mailop
Alberto, I do exactly as you are suggesting — I host inbound email on a Google 
Cloud instance (and I did so previously on an AWS EC2 instance). Neither allows 
port 25 outbound. I relay outbound SMTP through an existing VPS I’ve had at 
another ISP for years. It works fine.

Cheers,
Al Iverson

> On Jan 17, 2023, at 8:57 PM, Jarland Donnell via mailop  
> wrote:
> 
> Though it's possible that you may see this more with governments and such, 
> I've not noticed that anyone significant blocks their own traffic outbound to 
> OVH, except for a couple of military contractors (which isn't my definition 
> of significant to any average person). If they block anything it's usually 
> blocking their own inbound email which came from an OVH IP, rather than their 
> own outbound email headed toward an OVH IP.
> 
> On 2023-01-17 20:34, Alberto Abrao via mailop wrote:
>> Hello,
>> first message to this list. I have been lurking for a while, and I learned a 
>> lot here. Thank you.
>> I operate a personal e-mail server, and, as soon as I started self-hosting, 
>> I requested a static IP from my ISP, moving records as I changed to a 
>> different provider.
>> During the move, I was relying on the "retry" period of the SMTP protocol, 
>> which worked just fine.
>> Still, it generates an error message to the sender. I was looking to "split" 
>> my server, having the MX (inbound) at a cloud provider (OVH), and keeping 
>> outbound SMTP on the IP provided by my ISP.
>> I see many posts saying that e-mails from cloud providers such as OVH are 
>> blocked outright by many. That had me wondering if it's a good idea to 
>> proceed with this plan, as I may not be able to receive messages from 
>> senders under these operators.
>> That'd assume the block is inbound and outbound, instead of inbound-only. Is 
>> that the case?
>> One more thing, would a set up like this interfere with my "score", so to 
>> speak?
>> Once again, thank you.
>> Kind regards,
>> Alberto Abrao
>> ___
>> mailop mailing list
>> mailop@mailop.org
>> https://list.mailop.org/listinfo/mailop
> ___
> mailop mailing list
> mailop@mailop.org
> https://list.mailop.org/listinfo/mailop

___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop


Re: [mailop] Using cloud hosts for MX (not SMTP)

2023-01-17 Thread Jarland Donnell via mailop
Though it's possible that you may see this more with governments and 
such, I've not noticed that anyone significant blocks their own traffic 
outbound to OVH, except for a couple of military contractors (which 
isn't my definition of significant to any average person). If they block 
anything it's usually blocking their own inbound email which came from 
an OVH IP, rather than their own outbound email headed toward an OVH IP.


On 2023-01-17 20:34, Alberto Abrao via mailop wrote:

Hello,

first message to this list. I have been lurking for a while, and I 
learned a lot here. Thank you.


I operate a personal e-mail server, and, as soon as I started 
self-hosting, I requested a static IP from my ISP, moving records as I 
changed to a different provider.


During the move, I was relying on the "retry" period of the SMTP 
protocol, which worked just fine.


Still, it generates an error message to the sender. I was looking to 
"split" my server, having the MX (inbound) at a cloud provider (OVH), 
and keeping outbound SMTP on the IP provided by my ISP.


I see many posts saying that e-mails from cloud providers such as OVH 
are blocked outright by many. That had me wondering if it's a good idea 
to proceed with this plan, as I may not be able to receive messages 
from senders under these operators.


That'd assume the block is inbound and outbound, instead of 
inbound-only. Is that the case?


One more thing, would a set up like this interfere with my "score", so 
to speak?



Once again, thank you.

Kind regards,
Alberto Abrao

___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop

___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop


[mailop] Using cloud hosts for MX (not SMTP)

2023-01-17 Thread Alberto Abrao via mailop

Hello,

first message to this list. I have been lurking for a while, and I 
learned a lot here. Thank you.


I operate a personal e-mail server, and, as soon as I started 
self-hosting, I requested a static IP from my ISP, moving records as I 
changed to a different provider.


During the move, I was relying on the "retry" period of the SMTP 
protocol, which worked just fine.


Still, it generates an error message to the sender. I was looking to 
"split" my server, having the MX (inbound) at a cloud provider (OVH), 
and keeping outbound SMTP on the IP provided by my ISP.


I see many posts saying that e-mails from cloud providers such as OVH 
are blocked outright by many. That had me wondering if it's a good idea 
to proceed with this plan, as I may not be able to receive messages from 
senders under these operators.


That'd assume the block is inbound and outbound, instead of 
inbound-only. Is that the case?


One more thing, would a set up like this interfere with my "score", so 
to speak?



Once again, thank you.

Kind regards,
Alberto Abrao

___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop